Dry powder barrel support of hemodialysis instrument

Abstract

The utility model discloses a dry powder barrel support of a hemodialysis instrument, relates to the technical field of medical instruments, and solves the problem that a dry powder barrel is not smoothly mounted on an existing dry powder barrel support. The dry powder barrel support of the hemodialysis instrument comprises a sliding rod with a clamping hole and a sliding block assembly arranged on the sliding rod in a sleeved mode and connected with the sliding rod in a sliding mode, the sliding block assembly comprises a locking structure used for locking the sliding block assembly, and a clamping head used for being inserted into the clamping hole is arranged at the end, close to the sliding rod, of the locking structure. And under the condition that the clamping head is inserted into the clamping hole, the clamping head and the clamping hole are in point type contact or line type contact in the upper area where the clamping head and the clamping hole abut against each other.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a dry powder container support for a hemodialysis machine. Background Technology

[0002] During hemodialysis, two pre-prepared concentrates, A and B, need to be mixed in a specific ratio before being introduced into the patient's body. However, pre-prepared concentrates have problems such as short shelf life and susceptibility to infection. Using pre-prepared concentrates directly is not only costly but also inconvenient.

[0003] To address this issue, the existing approach is to directly introduce the pre-mixed dry powder into the hemodialysis system, resolving problems such as short shelf life and susceptibility to infection associated with pre-concentrated solutions. Referring to our company's patent application number CN201820798462.6, entitled "A Dry Powder Container Support," the pre-concentrated dry powder container can be installed into the hemodialysis system. During hemodialysis, the dry powder container can be directly replaced, effectively solving a series of problems related to the proportioning and mixing of pre-concentrated solutions.

[0004] When installing the dry powder hopper onto the dry powder hopper bracket, considering the differences in size between dry powder hoppers produced by different manufacturers, it is necessary to use a top pressure spring to tighten the dry powder hopper. However, when using a top pressure spring to tighten the dry powder hopper, because the locking rod and the locking hole inside the sliding rod are in surface contact, the operation of the locking rod locking into or sliding out of the sliding rod is not smooth under the tightening pressure of the top pressure spring, thus affecting the smooth installation of the dry powder hopper.

[0005] Therefore, there is an urgent need for a dry powder container support for hemodialysis machines to solve the above problems. Summary of the Invention

[0006] The purpose of this application is to provide a dry powder container support for a hemodialysis machine, which solves the problem of unsmooth installation of the dry powder container in existing dry powder container supports.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0008] This application provides a dry powder container support for a hemodialysis machine, including a slide rod with a locking hole, and a slider assembly fitted onto and slidably connected to the slide rod. The slider assembly includes a locking structure for locking the slider assembly, wherein:

[0009] The locking structure has a locking head at one end near the slide bar for insertion into the locking hole;

[0010] When the card head is inserted into the card slot, the card head and the card slot make point contact or line contact in the upper area where they abut each other.

[0011] Furthermore, the card head and the card hole are in linear contact;

[0012] The upper region of the outer peripheral wall of the card head or the upper region of the inner peripheral wall of the card hole has an angle.

[0013] Furthermore, the tilt angle ranges from 5° to 45°.

[0014] Furthermore, the card head and the card hole are in linear contact;

[0015] The upper part of the outer peripheral wall of the card head or the upper part of the inner peripheral wall of the card hole is provided with at least one ring of protrusions.

[0016] Furthermore, the card head and the card hole are in point contact;

[0017] The upper part of the outer peripheral wall of the card head or the upper part of the inner peripheral wall of the card hole is provided with at least one ring of protrusions distributed in an arc or spiral shape.

[0018] Furthermore, the locking structure includes a first locking lever and a second locking lever arranged in a cross shape, wherein:

[0019] The first locking lever is set perpendicular to the sliding lever, and the second locking lever is set parallel to the sliding lever;

[0020] The locking head is located at the end of the first locking lever near the slide bar.

[0021] Furthermore, the slider assembly also includes a slider housing and a locking seat fixed inside the slider housing, as well as a button with one end located inside the locking seat and the other end protruding from the locking seat and extending out of the slider housing;

[0022] The button is equipped with a return spring. One end of the return spring presses against the button, and the other end presses against the locking seat. The button is equipped with an oblique hole for driving the second lever to move closer to or away from the slide bar.

[0023] The first locking rod is located inside the locking seat and is slidably connected to the locking seat along the axial direction;

[0024] The locking seat is provided with a strip-shaped limiting slide hole parallel to the first locking rod, and the two ends of the second locking rod are located in the strip-shaped limiting slide hole through the oblique hole.

[0025] Furthermore, the slider assembly also includes a top pressure spring and a connector disposed within the slider housing. The connector is movably connected to the slider housing, and the two ends of the top pressure spring press against the top of the connector and the slider housing, respectively.

[0026] Furthermore, both the first lever and the locking seat are made of POM material.

[0027] Furthermore, the slide bar is provided with at least two locking holes with the same structure and orientation, and the distance between the two locking holes is adapted to the height of the dry powder bucket it is adapted to.

[0028] The beneficial effects of this utility model are:

[0029] The design concept of this application is to improve the current surface contact between the locking rod and the slide rod when the locking rod is inserted into the slide rod to a line contact or point contact. This allows the locking rod to easily disengage from the slide rod when installing the dry powder canister, only needing to overcome the initial frictional resistance. Furthermore, when locking the dry powder canister, the return spring inside the button can easily push the locking head of the locking structure into the slide rod without continuously overcoming the frictional force caused by the surface contact. This makes the entire installation process of the dry powder canister extremely smooth, thereby effectively solving the problems of the existing technology. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application.

[0031] Figure 2 This is a three-dimensional structural diagram of an embodiment of this application after removing the slider shell.

[0032] Figure 3 This is a cross-sectional structural diagram of an embodiment of this application.

[0033] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0034] Figure 5 This is a top view of the structure after removing the locking seat in an embodiment of this application.

[0035] Explanation of reference numerals in the attached drawings: 1-slide bar, 101-locking hole, 2-upper seat, 3-lower seat, 4-slide bar assembly, 41-slide bar housing, 42-button, 421-slanted hole, 43-locking seat, 431-limiting slide hole, 44-top pressure spring, 45-connector, 46-first locking bar, 461-locking head, 47-second locking bar. Detailed Implementation

[0036] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0037] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] like Figures 1 to 5 As shown, this embodiment provides a dry powder container support for a hemodialysis machine, including a slide rod 1 with a locking hole 101, and a slider assembly 4 fitted onto and slidably connected to the slide rod 1. The slider assembly 4 includes a locking structure for locking the slider assembly 4, wherein:

[0041] The locking structure has a locking head 461 at one end near the slide bar 1 for insertion into the locking hole 101;

[0042] When the card head 461 is inserted into the card hole 101, the card head 461 and the card hole 101 are in point contact or line contact in the upper area where they abut each other.

[0043] The improvement in this embodiment is to change the surface contact between the current locking rod and the slide rod 1 when the locking rod is inserted into the slide rod 1 to a line contact or point contact. This makes it so that when installing the dry powder canister, only the initial frictional resistance needs to be overcome to allow the locking rod to easily exit the slide rod 1. Furthermore, when locking the dry powder canister, the return spring in the button 42 can also easily push the locking head 461 of the locking structure into the slide rod 1 without having to continuously overcome the frictional force caused by the surface contact. This makes the entire installation process of the dry powder canister extremely smooth, thereby effectively solving the problems of the prior art.

[0044] Specifically, such as Figure 4 As shown, in this embodiment, the card head 461 and the card hole 101 are in linear contact;

[0045] The upper region of the outer peripheral wall of the chuck head 461 or the upper region of the inner peripheral wall of the chuck hole 101 has an angle. In this embodiment, the chuck head 461 is a tapered structure with an angle, while the chuck hole 101 is a circular hole or an oval hole of equal diameter. In this embodiment, the tapered structure with an angle can reduce manufacturing costs. In some embodiments, those skilled in the art can also improve the chuck head 461 to an expanded structure with an angle, or set the chuck head 461 to a structure of equal diameter, while designing the chuck hole 101 to be a tapered structure.

[0046] Specifically, in this embodiment, the tilt angle ranges from 5° to 45°, and specifically, the tilt angle in this embodiment is set to 10°. Technicians can set the tilt angle of the card head 461 to other angles such as 15°, 20°, 25°, and 30°, which will not be elaborated here.

[0047] In some optional embodiments, the card head 461 is in linear contact with the card hole 101;

[0048] At least one annular protrusion is provided on the upper part of the outer peripheral wall of the card head 461 or the upper part of the inner peripheral wall of the card hole 101.

[0049] In some optional embodiments, the card head 461 makes point contact with the card hole 101;

[0050] The upper part of the outer peripheral wall of the card head 461 or the upper part of the inner peripheral wall of the card hole 101 is provided with at least one ring of protrusions distributed in an arc or spiral shape.

[0051] Specifically, in this embodiment, such as Figures 2 to 4 As shown, the locking structure includes a first locking lever 46 and a second locking lever 47 arranged in a cross shape, wherein:

[0052] The first locking lever 46 is set perpendicular to the slide bar 1, and the second locking lever 47 is set parallel to the slide bar 1;

[0053] The locking head 461 is located at the end of the first locking rod 46 near the slide rod 1. In this embodiment, the first locking rod 46 and the second locking rod 47 are fixedly connected in a detachable manner, which facilitates the installation and removal of the first locking rod 46 and the second locking rod 47.

[0054] Specifically, in this embodiment, the slider assembly 4 also includes a slider housing 41 and a locking seat fixed inside the slider housing 41, as well as a button 42 with one end located inside the locking seat and the other end protruding from the locking seat and extending out of the slider housing 41.

[0055] The button 42 is provided with a reset spring. One end of the reset spring presses against the button 42, and the other end presses against the locking seat. The button 42 is provided with an oblique hole 421 for driving the second latch 47 to approach or move away from the slide bar 1.

[0056] The first locking rod 46 is located inside the locking seat and is slidably connected to the locking seat along the axial direction;

[0057] The locking seat is provided with a strip-shaped limiting sliding hole 431 parallel to the first locking rod 46. The two ends of the second locking rod 47 are located in the strip-shaped limiting sliding hole 431 through the oblique hole 421. In this embodiment, when installing the dry powder bucket, the button 42 is pressed. The oblique hole 421 on the button 42 can be used to push the second locking rod 47, thereby pushing the first locking rod 46 out of the slide rod 1, so that the slider assembly 4 is no longer locked on the slide rod 1. Then, the slider assembly 4 is moved to install the dry powder bucket on the dry powder bucket bracket. Then, the button 42 is released. Under the action of the return spring (not shown in the figure) in the button 42, the button 42 pushes the second locking rod 47, thereby pushing the first locking rod 46 into the slide rod 1. At this time, the dry powder bucket is installed.

[0058] In this embodiment, an upper seat 2 and a lower seat 3 are also included. After the dry powder bucket is installed, its two ends are respectively clamped between the lower seat 3 and the slider assembly 4.

[0059] In this embodiment, the slider assembly 4 further includes a top pressure spring 44 and a connector 45 disposed in the slider housing 41. The connector 45 is movably connected to the slider housing 41, and the two ends of the top pressure spring 44 press against the top of the connector 45 and the sliding housing, respectively.

[0060] In this embodiment, both the first locking rod 46 and the locking seat are made of POM material, which can further reduce the friction between the first locking rod 46 and the slide rod 1, as well as the friction between the first locking rod 46 and the locking seat, making it smoother. POM is an existing material and will not be described in detail here.

[0061] In this embodiment, the slide bar 1 is provided with at least two locking holes 101 with the same structure and orientation. The distance between the two locking holes 101 is adapted to the height of the dry powder bucket. One locking hole 101 is used to install the dry powder bucket, while the other locking hole 101 can be used for subsequent maintenance of the dry powder bucket bracket. In this embodiment, a third locking hole 101 is also provided to accommodate more models of dry powder buckets.

[0062] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A dry powder container support for a hemodialysis machine, comprising a slide rod (1) having a locking hole (101), and a slider assembly (4) fitted onto and slidably connected to the slide rod (1), characterized in that, The slider assembly (4) includes a locking structure for locking the slider assembly (4), wherein: The locking structure has a locking head (461) at one end near the slide bar (1) for insertion into the locking hole (101); When the card head (461) is inserted into the card hole (101), the card head (461) and the card hole (101) are in point contact or line contact in their upper abutting areas.

2. The dry powder container support for a hemodialysis machine according to claim 1, characterized in that, The card head (461) and the card hole (101) are in linear contact; The upper region of the outer peripheral wall of the card head (461) or the upper region of the inner peripheral wall of the card hole (101) has an inclination angle.

3. The dry powder container support for a hemodialysis machine according to claim 2, characterized in that, The tilt angle ranges from 5° to 45°.

4. The dry powder container support for a hemodialysis machine according to claim 1, characterized in that, The card head (461) and the card hole (101) are in linear contact; The upper part of the outer peripheral wall of the card head (461) or the upper part of the inner peripheral wall of the card hole (101) is provided with at least one ring of protrusions.

5. The dry powder container support for a hemodialysis machine according to claim 1, characterized in that, The card head (461) and the card hole (101) are in point contact; The upper part of the outer peripheral wall of the card head (461) or the upper part of the inner peripheral wall of the card hole (101) is provided with at least one ring of protrusions distributed in an arc or spiral shape.

6. The dry powder container support for a hemodialysis machine according to claim 1, characterized in that, The locking structure includes a first locking lever (46) and a second locking lever (47) arranged in a cross shape, wherein: The first lever (46) is set perpendicular to the slide bar (1), and the second lever (47) is set parallel to the slide bar (1); The locking head (461) is located at the end of the first locking lever (46) near the slide bar (1).

7. The dry powder container support for a hemodialysis machine according to claim 6, characterized in that, The slider assembly (4) also includes a slider housing (41) and a locking seat fixed inside the slider housing (41), and a button (42) with one end inside the locking seat and the other end protruding from the locking seat and extending out of the slider housing (41); The button (42) is provided with a reset spring. One end of the reset spring presses against the button (42) and the other end presses against the locking seat. The button (42) is provided with an oblique hole (421) for driving the second lever (47) to approach or move away from the slide bar (1). The first locking rod (46) is located inside the locking seat and is slidably connected to the locking seat along the axial direction; The locking seat is provided with a strip-shaped limiting slide hole (431) parallel to the first locking rod (46), and the two ends of the second locking rod (47) are located in the strip-shaped limiting slide hole (431) through the oblique hole (421).

8. The dry powder container support for a hemodialysis machine according to claim 7, characterized in that, The slider assembly (4) also includes a top pressure spring (44) and a connector (45) disposed in the slider housing (41). The connector (45) is movably connected to the slider housing (41), and the two ends of the top pressure spring (44) press against the top of the connector (45) and the slider housing, respectively.

9. A dry powder container support for a hemodialysis machine according to claim 6, characterized in that, The first lever (46) and the locking seat are both made of POM material.

10. A dry powder container support for a hemodialysis machine according to claim 1, characterized in that, The slide bar (1) is provided with at least two locking holes (101) with the same structure and orientation, and the distance between the two locking holes (101) is adapted to the height of the dry powder bucket it is adapted to.

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